I recently got a 90s Colnago Master Competition and just put it together. It has internal brake routing for the rear brake and I have a problem. I thought there was a cable stop when it goes internal so I cut the housing to the braze-on on the top tube on both ends. When I put it all together and pulled the brakes, the housing is pulled into the top tube but strips off part of the housing outer plastic. It has pulled in about 3" of housing on the rear and 1" in the front. It doesn't seem to have a cable stop. Does anyone have any insights on how to set it up?
I was thinking about getting housing and strip the plastic outer layer for the section inside the top tube then inserting the housing from both ends. Essentially doing a full housing for the rear brakes. Is this right?